Hot-water heater.



0. W. MOON & I. MOORE.

HOT WATER HEATER.

APPLICATION FILED PEB.3, 191a.

i Mia? 6%!!! 7/7/70 Patented Sept. 23, 1913.

COLUMBIA I'LANOGRAPH C0-. WASHINGTON. D, C

CLARENCE W. MOON AND IRWIN MOORE, OF MINNEAPOLIS, MINNESOTA.

HOT-WATER HEATER.

Specification of Letters Patent.

llatented Sept. 23, 1913..

Application filed February 3, 1913. Serial No. 745,865.

To all whom it may concern Be it known that we, CLARENCE W. Moon and IRWIN MOORE, citizens of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Hotater Heaters; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Particularly, our invention has for its object to provide a water heater of simple construction and increased efficiency, adapted for use in connection with water heating systems and to such ends, generally stated, the invention consists of the novel devices and combinations of devices hereinafter dcscribed and defined in the claims.

The principles of construction involved in this water heater are capable of use in steam generating boilers and the term Water heater is therefore used in this broad sense.

In the accompanying drawings, like characters indicate like parts throughout the several views.

Referring to the drawings: Figure 1 is a vertical section taken through the improved water heater; and Fig. 2 is a horizontal sec tion taken approximately on the line er of Fig. 1, looking upward and showing some parts in full.

The main body 1 of the boiler is provided with an annular Water chamber 2, forminga surrounding water jacket that extends also over the top of the said main shell except at a point where a smoke outlet passage 3 extends through the top thereof. The grates 4, which may be of the usual or any suitable construction, are supported in any suitable way from a base casting 5, in which the ash pit is formed. In front the main body or shell of the boiler is provided with the customary door closed fuel passage (3.

Located Within the main shell not very far from the top thereof is a two-compartment water head 78, provided, respectively, with depending elbows 9 and. 10. Preferably, the sections 7 and 8 of this water head are made approximately semi-cylindrical and are independently cast, being put together with lapped joints 11 and having internal notches or recesses 12 that register to form smoke passages.

The elbow 10 of the water head section 8 is connected by a short pipe 13, to the annular chamber 2 of the main shell 1. The elbow 9 of the water head section 7 is connected to a hot water out-let pipe 14:, that cxtends through a suitable passage formed in one side of the main shell 1. The numeral 15 indicates a cold water return pipe, which opens into one side of the chamber 2 of the main shell 1.

There is no direct connection between the sections or compartments 7 and 8 of the watcr head, but these compartments are connected by a plurality of depending U-shaped water tubes 16, which, as shown in Fig. 2, are of varying transverse spread.

lVith the above described arrangement, the circulation of the water is as follows: From the radiators, not shown, through the cold water return pipe 15 to the lower portion of the annular chamber 2 of the main shell 1; thence around and upward in said chamber 2 and through the tube 13 and elbow 10 into the water head section or compartment 8; thence downward and then up ward through the U-shaped tube 16 and into the other section or compartment 7 of the said water head; and thence through the elbow 9 and pipe 14 back to the radiator. The water is thus carried into contact with a very large amount of heat absorbing surface and it is caused to take a winding course, while subjected to intense heat. In fact, the water is practically twice subjected to the heat in the fire box of the heater, inasniuch as it is first delivered into one compartment of the water head and thence through the U-shaped tubes into the other compartment of the said water head. Also, the disposition of the water head and of the plurality of U-shapcd tubes of varying spread is such that flames or hot products of combustion will be kept in very intimate contact with all parts of the heat absorbing water conducting elements.

What we claim is:

1. In a hot water heater, the combination with a body shell having a water jacket, of a twocompartment water head within said shell, a connection between the water jacket of said main shell and one compartment of said water head, tubes connecting the compartments of said water head, and a hot water delivery pipe leading from the other compartment of said water head, said tubes being U-shaped form and depending from said head. 7

v 2. In a hot water heater, the combination with a body shell having a water jacket, of a two-compartment water head within said shell, a connection between the water jacket of said main shell and one compartment of said water head, tubes connecting the compartments of said water head, and a hot water delivery pipe leading from the other compartment of said water head, the said water head having smoke passages extending therethrough, and the said water tubes connecting the compartments of said water head being U-shaped form and depending from said head.

3. In a water heater, the combination 1 with a main shell having a surrounding wa- 1 ter acke't, of a two-compartment water head 7 within said main shell made up of two inde- Copies of this patent may be obtained for of said water head being connected to the water jacket of said main shell, and a hot water delivery pipe extending from the other compartmentofsaid water head.

4. In a hot waterheater, the combination with a main shell having a surrounding water jacket, of a two-compartment water head within said main shell made up of two independently formed sections, having C0111- cident notches affording a smoke passage, of a plurality of U-shaped water tubes of varying spread connecting the compart ments of said water head, one of the compartments of said water head being connected to the water jacket of said main shell, a hot water delivery pipe extending from the other compartment of said water head, and a cold. water return pipe opening into the lower portion of the water acket of said main shell.

In testimony whereof we aihx our signatures in presence of two witnesses.

CLARE-NOE w. MOON. IRWIN MOORE.

Witnesses:

HARRY D. KILGoRn, F. D. MERCHANT.

five cents each, by addressing the Commissioner of Patents, Washington, I). G. 

